#64A7EC
Closest named color: Cornflower Blue (#6495ED). oklch(71.3% 0.123 250.6), rgb(100, 167, 236).
Aa
Black text reads best on this color (8.28:1).
About this color
#64A7EC is a medium-light, moderately saturated blue. In OKLCH its lightness is 71%, its chroma 0.123 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.049 away. Black text reads best on it, at 8.28:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 8.28:1 |
| White text | 2.53:1 |
Values
| HEX | #64A7EC |
| RGB | rgb(100, 167, 236) |
| HSL | hsl(210, 78%, 66%) |
| OKLCH | oklch(71.3% 0.123 250.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #64A7EC | 2.53:1 | Fails | Lc -54.6 | Large or bold text, headings |
| Black text on #64A7EC | 8.28:1 | AAA | Lc 54.5 | Large or bold text, headings |
| #64A7EC text on white | 2.53:1 | Fails | Lc 49.5 | Large or bold text, headings |
| #64A7EC text on black | 8.28:1 | AAA | Lc -52.4 | Large or bold text, headings |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 400.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9CC5F1
oklch(81% 0.076 250.6)
-
Step 400
400 (this color)
#64A7EC
oklch(71.3% 0.123 250.6)
-
Step 500
500
#2F8DE4
oklch(63.2% 0.157 250.6)
-
Step 600
600
#0075CC
oklch(55.6% 0.16 250.6)
-
Step 700
700
#0062AD
oklch(49.1% 0.142 250.8)
-
Step 800
800
#00508F
oklch(42.6% 0.123 250.8)
-
Step 900
900
#084375
oklch(37.7% 0.102 250.5)
-
Step 950
950
#092845
oklch(27.1% 0.065 250.4)
#64A7EC with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8AAAEF | 0.043 |
| Deuteranopia (no green cones) | #789DEB | 0.031 |
| Tritanopia (no blue cones) | #00B7BF | 0.103 |
| Achromatopsia (no color) | #A3A3A3 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A7EC
#64A7EC
oklch(71.3% 0.123 250.6)
- #D29443
#D29443
oklch(71.2% 0.122 70.7)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #64A7EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.049
- Chefchaouen Blue #4895EF ΔE 0.059
- Periwinkle Blue #8F99FB ΔE 0.065
- Carolina Blue #8AB8FE ΔE 0.067
- Deep Sky Blue #00BFFF ΔE 0.069
- Dark Sky Blue #448EE4 ΔE 0.077
- Greyblue #77A1B5 ΔE 0.080
- Perrywinkle #8F8CE7 ΔE 0.080
Use #64A7EC in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.